diff --git a/mindspore/ops/_grad/grad_array_ops.py b/mindspore/ops/_grad/grad_array_ops.py
index 923a8783b31..41495be9137 100644
--- a/mindspore/ops/_grad/grad_array_ops.py
+++ b/mindspore/ops/_grad/grad_array_ops.py
@@ -682,3 +682,14 @@ def get_bprop_broadcast_to(self):
         dx = reshape(reduced_grad, x_shape)
         return (dx,)
     return bprop
+
+
+@bprop_getters.register(P.ReverseSequence)
+def get_bprop_reverse_sequence(self):
+    """Generate bprop for ReverseSequence"""
+    reverse_sequence_grad = P.ReverseSequence(batch_dim=self.batch_dim_, seq_dim=self.seq_dim_)
+
+    def bprop(x, seq_lengths, out, dout):
+        dx = reverse_sequence_grad(dout, seq_lengths)
+        return dx, zeros_like(seq_lengths)
+    return bprop
diff --git a/mindspore/ops/_op_impl/aicpu/__init__.py b/mindspore/ops/_op_impl/aicpu/__init__.py
index 24f4ad750cd..9349e10cfff 100644
--- a/mindspore/ops/_op_impl/aicpu/__init__.py
+++ b/mindspore/ops/_op_impl/aicpu/__init__.py
@@ -26,3 +26,6 @@ from .expand_dims import _expand_dims_aicpu
 from .random_choice_with_mask import _random_choice_with_mask_aicpu
 from .pack import _pack_aicpu
 from .normal import _normal_aicpu
+from .ctcloss import _ctcloss_aicpu
+from .reverse_sequence import _reverse_sequence_aicpu
+from .crop_and_resize import _crop_and_resize_aicpu
diff --git a/mindspore/ops/_op_impl/aicpu/crop_and_resize.py b/mindspore/ops/_op_impl/aicpu/crop_and_resize.py
new file mode 100644
index 00000000000..f52e6b00ee2
--- /dev/null
+++ b/mindspore/ops/_op_impl/aicpu/crop_and_resize.py
@@ -0,0 +1,69 @@
+# Copyright 2020 Huawei Technologies Co., Ltd
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ============================================================================
+
+"""CropAndResize op"""
+from mindspore.ops.op_info_register import op_info_register, AiCPURegOp, DataType
+crop_and_resize_op_info = AiCPURegOp("CropAndResize") \
+    .fusion_type("OPAQUE") \
+    .input(0, "image", "required") \
+    .input(1, "boxes", "required") \
+    .input(2, "box_index", "required") \
+    .input(3, "crop_size", "required") \
+    .output(0, "y", "required") \
+    .attr("method", "str") \
+    .attr("extrapolation_value", "float") \
+    .dtype_format(DataType.I8_Default, DataType.F32_Default, DataType.I32_Default, DataType.I32_Default,
+                  DataType.F32_Default) \
+    .dtype_format(DataType.I16_Default, DataType.F32_Default, DataType.I32_Default, DataType.I32_Default,
+                  DataType.F32_Default) \
+    .dtype_format(DataType.I32_Default, DataType.F32_Default, DataType.I32_Default, DataType.I32_Default,
+                  DataType.F32_Default) \
+    .dtype_format(DataType.I64_Default, DataType.F32_Default, DataType.I32_Default, DataType.I32_Default,
+                  DataType.F32_Default) \
+    .dtype_format(DataType.F16_Default, DataType.F32_Default, DataType.I32_Default, DataType.I32_Default,
+                  DataType.F32_Default) \
+    .dtype_format(DataType.F32_Default, DataType.F32_Default, DataType.I32_Default, DataType.I32_Default,
+                  DataType.F32_Default) \
+    .dtype_format(DataType.F64_Default, DataType.F32_Default, DataType.I32_Default, DataType.I32_Default,
+                  DataType.F32_Default) \
+    .dtype_format(DataType.U8_Default, DataType.F32_Default, DataType.I32_Default, DataType.I32_Default,
+                  DataType.F32_Default) \
+    .dtype_format(DataType.U16_Default, DataType.F32_Default, DataType.I32_Default, DataType.I32_Default,
+                  DataType.F32_Default) \
+    .dtype_format(DataType.I8_NHWC, DataType.F32_NHWC, DataType.I32_NHWC, DataType.I32_NHWC,
+                  DataType.F32_NHWC) \
+    .dtype_format(DataType.I16_NHWC, DataType.F32_NHWC, DataType.I32_NHWC, DataType.I32_NHWC,
+                  DataType.F32_NHWC) \
+    .dtype_format(DataType.I32_NHWC, DataType.F32_NHWC, DataType.I32_NHWC, DataType.I32_NHWC,
+                  DataType.F32_NHWC) \
+    .dtype_format(DataType.I64_NHWC, DataType.F32_NHWC, DataType.I32_NHWC, DataType.I32_NHWC,
+                  DataType.F32_NHWC) \
+    .dtype_format(DataType.F16_NHWC, DataType.F32_NHWC, DataType.I32_NHWC, DataType.I32_NHWC,
+                  DataType.F32_NHWC) \
+    .dtype_format(DataType.F32_NHWC, DataType.F32_NHWC, DataType.I32_NHWC, DataType.I32_NHWC,
+                  DataType.F32_NHWC) \
+    .dtype_format(DataType.F64_NHWC, DataType.F32_NHWC, DataType.I32_NHWC, DataType.I32_NHWC,
+                  DataType.F32_NHWC) \
+    .dtype_format(DataType.U8_NHWC, DataType.F32_NHWC, DataType.I32_NHWC, DataType.I32_NHWC,
+                  DataType.F32_NHWC) \
+    .dtype_format(DataType.U16_NHWC, DataType.F32_NHWC, DataType.I32_NHWC, DataType.I32_NHWC,
+                  DataType.F32_NHWC) \
+    .get_op_info()
+
+
+@op_info_register(crop_and_resize_op_info)
+def _crop_and_resize_aicpu():
+    """CropAndResize AiCPU register"""
+    return
diff --git a/mindspore/ops/_op_impl/aicpu/ctcloss.py b/mindspore/ops/_op_impl/aicpu/ctcloss.py
new file mode 100644
index 00000000000..c393cb04b61
--- /dev/null
+++ b/mindspore/ops/_op_impl/aicpu/ctcloss.py
@@ -0,0 +1,42 @@
+# Copyright 2020 Huawei Technologies Co., Ltd
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ============================================================================
+
+"""CTCLoss op"""
+from mindspore.ops.op_info_register import op_info_register, AiCPURegOp, DataType
+ctcloss_op_info = AiCPURegOp("CTCLoss") \
+    .fusion_type("OPAQUE") \
+    .input(0, "inputs", "required") \
+    .input(1, "labels_indices", "required") \
+    .input(2, "labels_values", "required") \
+    .input(3, "sequence_length", "required") \
+    .output(0, "loss", "required") \
+    .output(1, "gradient", "required") \
+    .attr("preprocess_collapse_repeated", "bool") \
+    .attr("ctc_merge_repeated", "bool") \
+    .attr("ignore_longer_outputs_than_inputs", "bool") \
+    .dtype_format(DataType.F32_Default, DataType.I64_Default, DataType.I32_Default, DataType.I32_Default,
+                  DataType.F32_Default, DataType.F32_Default) \
+    .dtype_format(DataType.F64_Default, DataType.I64_Default, DataType.I32_Default, DataType.I32_Default,
+                  DataType.F64_Default, DataType.F64_Default) \
+    .dtype_format(DataType.F32_NCHW, DataType.I64_NCHW, DataType.I32_NCHW, DataType.I32_NCHW,
+                  DataType.F32_NCHW, DataType.F32_NCHW) \
+    .dtype_format(DataType.F64_NCHW, DataType.I64_NCHW, DataType.I32_NCHW, DataType.I32_NCHW,
+                  DataType.F64_NCHW, DataType.F64_NCHW) \
+    .get_op_info()
+
+@op_info_register(ctcloss_op_info)
+def _ctcloss_aicpu():
+    """CTCLoss AiCPU register"""
+    return
diff --git a/mindspore/ops/_op_impl/aicpu/reverse_sequence.py b/mindspore/ops/_op_impl/aicpu/reverse_sequence.py
new file mode 100644
index 00000000000..678a4a61f31
--- /dev/null
+++ b/mindspore/ops/_op_impl/aicpu/reverse_sequence.py
@@ -0,0 +1,78 @@
+# Copyright 2020 Huawei Technologies Co., Ltd
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ============================================================================
+
+"""ReverseSequence op"""
+from mindspore.ops.op_info_register import op_info_register, AiCPURegOp, DataType
+reverse_sequence_op_info = AiCPURegOp("ReverseSequence") \
+    .fusion_type("OPAQUE") \
+    .input(0, "x", "required") \
+    .input(1, "seq_lengths", "required") \
+    .output(0, "y", "required") \
+    .attr("seq_dim", "int") \
+    .attr("batch_dim", "int") \
+    .dtype_format(DataType.BOOL_Default, DataType.I32_Default, DataType.BOOL_Default) \
+    .dtype_format(DataType.I8_Default, DataType.I32_Default, DataType.I8_Default) \
+    .dtype_format(DataType.I16_Default, DataType.I32_Default, DataType.I16_Default) \
+    .dtype_format(DataType.I32_Default, DataType.I32_Default, DataType.I32_Default) \
+    .dtype_format(DataType.I64_Default, DataType.I32_Default, DataType.I64_Default) \
+    .dtype_format(DataType.U8_Default, DataType.I32_Default, DataType.U8_Default) \
+    .dtype_format(DataType.U16_Default, DataType.I32_Default, DataType.U16_Default) \
+    .dtype_format(DataType.U32_Default, DataType.I32_Default, DataType.U32_Default) \
+    .dtype_format(DataType.U64_Default, DataType.I32_Default, DataType.U64_Default) \
+    .dtype_format(DataType.F16_Default, DataType.I32_Default, DataType.F16_Default) \
+    .dtype_format(DataType.F32_Default, DataType.I32_Default, DataType.F32_Default) \
+    .dtype_format(DataType.F64_Default, DataType.I32_Default, DataType.F64_Default) \
+    .dtype_format(DataType.BOOL_NCHW, DataType.I32_NCHW, DataType.BOOL_NCHW) \
+    .dtype_format(DataType.I8_NCHW, DataType.I32_NCHW, DataType.I8_NCHW) \
+    .dtype_format(DataType.I16_NCHW, DataType.I32_NCHW, DataType.I16_NCHW) \
+    .dtype_format(DataType.I32_NCHW, DataType.I32_NCHW, DataType.I32_NCHW) \
+    .dtype_format(DataType.I64_NCHW, DataType.I32_NCHW, DataType.I64_NCHW) \
+    .dtype_format(DataType.U8_NCHW, DataType.I32_NCHW, DataType.U8_NCHW) \
+    .dtype_format(DataType.U16_NCHW, DataType.I32_NCHW, DataType.U16_NCHW) \
+    .dtype_format(DataType.U32_NCHW, DataType.I32_NCHW, DataType.U32_NCHW) \
+    .dtype_format(DataType.U64_NCHW, DataType.I32_NCHW, DataType.U64_NCHW) \
+    .dtype_format(DataType.F16_NCHW, DataType.I32_NCHW, DataType.F16_NCHW) \
+    .dtype_format(DataType.F32_NCHW, DataType.I32_NCHW, DataType.F32_NCHW) \
+    .dtype_format(DataType.F64_NCHW, DataType.I32_NCHW, DataType.F64_NCHW) \
+    .dtype_format(DataType.BOOL_Default, DataType.I64_Default, DataType.BOOL_Default) \
+    .dtype_format(DataType.I8_Default, DataType.I64_Default, DataType.I8_Default) \
+    .dtype_format(DataType.I16_Default, DataType.I64_Default, DataType.I16_Default) \
+    .dtype_format(DataType.I64_Default, DataType.I64_Default, DataType.I32_Default) \
+    .dtype_format(DataType.I64_Default, DataType.I64_Default, DataType.I64_Default) \
+    .dtype_format(DataType.U8_Default, DataType.I64_Default, DataType.U8_Default) \
+    .dtype_format(DataType.U16_Default, DataType.I64_Default, DataType.U16_Default) \
+    .dtype_format(DataType.U32_Default, DataType.I64_Default, DataType.U32_Default) \
+    .dtype_format(DataType.U64_Default, DataType.I64_Default, DataType.U64_Default) \
+    .dtype_format(DataType.F16_Default, DataType.I64_Default, DataType.F16_Default) \
+    .dtype_format(DataType.F32_Default, DataType.I64_Default, DataType.F32_Default) \
+    .dtype_format(DataType.F64_Default, DataType.I64_Default, DataType.F64_Default) \
+    .dtype_format(DataType.BOOL_NCHW, DataType.I64_NCHW, DataType.BOOL_NCHW) \
+    .dtype_format(DataType.I8_NCHW, DataType.I64_NCHW, DataType.I8_NCHW) \
+    .dtype_format(DataType.I16_NCHW, DataType.I64_NCHW, DataType.I16_NCHW) \
+    .dtype_format(DataType.I32_NCHW, DataType.I64_NCHW, DataType.I32_NCHW) \
+    .dtype_format(DataType.I64_NCHW, DataType.I64_NCHW, DataType.I64_NCHW) \
+    .dtype_format(DataType.U8_NCHW, DataType.I64_NCHW, DataType.U8_NCHW) \
+    .dtype_format(DataType.U16_NCHW, DataType.I64_NCHW, DataType.U16_NCHW) \
+    .dtype_format(DataType.U32_NCHW, DataType.I64_NCHW, DataType.U32_NCHW) \
+    .dtype_format(DataType.U64_NCHW, DataType.I64_NCHW, DataType.U64_NCHW) \
+    .dtype_format(DataType.F16_NCHW, DataType.I64_NCHW, DataType.F16_NCHW) \
+    .dtype_format(DataType.F32_NCHW, DataType.I64_NCHW, DataType.F32_NCHW) \
+    .dtype_format(DataType.F64_NCHW, DataType.I64_NCHW, DataType.F64_NCHW) \
+    .get_op_info()
+
+@op_info_register(reverse_sequence_op_info)
+def _reverse_sequence_aicpu():
+    """ReverseSequence AiCPU register"""
+    return
diff --git a/mindspore/ops/operations/__init__.py b/mindspore/ops/operations/__init__.py
index 901db32c46b..e84cf44945f 100644
--- a/mindspore/ops/operations/__init__.py
+++ b/mindspore/ops/operations/__init__.py
@@ -19,6 +19,7 @@ Primitive operator classes.
 A collection of operators to build nerual networks or computing functions.
 """
 
+from .image_ops import (CropAndResize)
 from .array_ops import (Argmax, Argmin, Cast, Concat, Pack, Unpack,
                         Diag, DiagPart, DType, ExpandDims, Eye,
                         Fill, GatherNd, GatherV2, SparseGatherV2, InvertPermutation,
@@ -30,7 +31,7 @@ from .array_ops import (Argmax, Argmin, Cast, Concat, Pack, Unpack,
                         Squeeze, StridedSlice, Tile, TensorScatterUpdate,
                         Transpose, TruncatedNormal, TupleToArray, UnsortedSegmentMin,
                         UnsortedSegmentSum, SpaceToDepth, DepthToSpace, SpaceToBatch, BatchToSpace,
-                        SpaceToBatchND, BatchToSpaceND, BroadcastTo, InplaceUpdate)
+                        SpaceToBatchND, BatchToSpaceND, BroadcastTo, InplaceUpdate, ReverseSequence)
 from .comm_ops import (AllGather, AllReduce, _AlltoAll, ReduceScatter, Broadcast,
                        _MirrorOperator, ReduceOp, _VirtualDataset,
                        _VirtualDiv, _GetTensorSlice,
@@ -79,6 +80,8 @@ from .other_ops import (Assign, IOU, BoundingBoxDecode, BoundingBoxEncode,
 from .thor_ops import *
 
 __all__ = [
+    'ReverseSequence',
+    'CropAndResize',
     'TensorAdd',
     'Argmax',
     'Argmin',
diff --git a/mindspore/ops/operations/array_ops.py b/mindspore/ops/operations/array_ops.py
index 395d3c509c2..558d54b95a1 100644
--- a/mindspore/ops/operations/array_ops.py
+++ b/mindspore/ops/operations/array_ops.py
@@ -2841,3 +2841,52 @@ class InplaceUpdate(PrimitiveWithInfer):
                         Rel.EQ, self.name)
 
         return x_shape
+
+
+class ReverseSequence(PrimitiveWithInfer):
+    """
+    Reverses variable length slices.
+
+    Args:
+        seq_dim (int): The dimension along which reversal is performed. Required.
+        batch_dim (int): The input is sliced along this dimmension. Default: 0.
+
+    Inputs:
+        - **x** (Tensor) - The input to reverse, support all number types including bool.
+        - **seq_lengths** (Tensor) - Must be 1-D vector with types: int32, int64.
+
+    Outputs:
+        Reversed tensor with the same shape and data type as input.
+
+    Examples:
+        >>> x = Tensor(np.array([[1, 2, 3], [4, 5, 6], [7, 8, 9]]), mindspore.float32)
+        >>> seq_lengths = Tensor(np.array([1, 2, 3]))
+        >>> reverse_sequence = P.ReverseSequence(seq_dim=1)
+        >>> output = reverse_sequence(x, seq_lengths)
+        [[1 2 3]
+         [5 4 6]
+         [9 8 7]]
+    """
+
+    @prim_attr_register
+    def __init__(self, seq_dim, batch_dim=0):
+        """init ReverseSequence"""
+        self.init_prim_io_names(inputs=['x', 'seq_lengths'], outputs=['y'])
+        validator.check_value_type("seq_dim", seq_dim, [int], self.name)
+        self.seq_dim_ = seq_dim
+        validator.check_value_type("batch_dim", batch_dim, [int], self.name)
+        self.batch_dim_ = batch_dim
+
+    def infer_shape(self, x, seq_lengths):
+        validator.check("seq_dim", self.seq_dim_, "x rank", len(x), Rel.LE, self.name)
+        validator.check("batch_dim", self.batch_dim_, "x rank", len(x), Rel.LE, self.name)
+        validator.check("batch_dim", self.batch_dim_, "seq_dim", self.seq_dim_, Rel.NE, self.name)
+        validator.check("seq_lengths rank", len(seq_lengths), "expected", 1, Rel.EQ, self.name)
+        validator.check("seq_lengths vector size", seq_lengths[0],
+                        "input size along batch_dim", x[self.batch_dim_], Rel.EQ, self.name)
+        return x
+
+    def infer_dtype(self, x, seq_lengths):
+        validator.check_tensor_type_same({"x_dtype": x}, mstype.number_type + (mstype.bool_,), self.name)
+        validator.check_tensor_type_same({"seq_lengths_dtype": seq_lengths}, [mstype.int32, mstype.int64], self.name)
+        return x
diff --git a/mindspore/ops/operations/image_ops.py b/mindspore/ops/operations/image_ops.py
new file mode 100644
index 00000000000..68dae34530b
--- /dev/null
+++ b/mindspore/ops/operations/image_ops.py
@@ -0,0 +1,126 @@
+# Copyright 2020 Huawei Technologies Co., Ltd
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ============================================================================
+
+"""image_ops"""
+from ..._checkparam import Validator as validator
+from ..._checkparam import Rel
+from ...common import dtype as mstype
+from ..primitive import PrimitiveWithInfer, prim_attr_register
+
+
+class CropAndResize(PrimitiveWithInfer):
+    """
+    Extracts crops from the input image tensor and resizes them.
+
+    Note:
+        In case that the output shape depends on crop_size, the crop_size should be constant.
+
+    Args:
+        method (str):  	An optional string specifying the sampling method for resizing.
+            It can be either "bilinear" or "nearest" and default to "bilinear"
+        extrapolation_value (float): An optional float defaults to 0. Value used for extrapolation, when applicable.
+
+    Inputs:
+        - **x** (Tensor) - The input image must be a 4-D tensor of shape [batch, image_height, image_width, depth].
+            Types allowed: int8, int16, int32, int64, float16, float32, float64, uint8, uint16.
+        - **boxes** (Tensor) - A 2-D tensor of shape [num_boxes, 4].
+            The i-th row of the tensor specifies the coordinates of a box in the box_ind[i] image
+            and is specified in normalized coordinates [y1, x1, y2, x2]. A normalized coordinate value of y is mapped to
+            the image coordinate at y * (image_height - 1), so as the [0, 1] interval of normalized image height is
+            mapped to [0, image_height - 1] in image height coordinates. We do allow y1 > y2, in which case the sampled
+            crop is an up-down flipped version of the original image. The width dimension is treated similarly.
+            Normalized coordinates outside the [0, 1] range are allowed, in which case we use extrapolation_value to
+            extrapolate the input image values. Types allowd: float32.
+        - **box_index** (Tensor) - A 1-D tensor of shape [num_boxes] with int32 values in [0, batch).
+            The value of box_ind[i] specifies the image that the i-th box refers to. Types allowd: int32.
+        - **crop_size** (Tensor) - Only constant value is allowd. Types allowed: int32.
+            A 1-D tensor of 2 elements, size = [crop_height, crop_width].
+            All cropped image patches are resized to this size. The aspect ratio of the image content is not preserved.
+            Both crop_height and crop_width need to be positive.
+    Outputs:
+        A 4-D tensor of shape [num_boxes, crop_height, crop_width, depth] with type: float32.
+
+    Examples:
+        >>> class CropAndResizeNet(nn.Cell):
+        >>>     def __init__(self, crop_size):
+        >>>         super(CropAndResizeNet, self).__init__()
+        >>>         self.crop_and_resize = P.CropAndResize()
+        >>>         self.crop_size = crop_size
+        >>>     @ms_function
+        >>>     def construct(self, x, boxes, box_index):
+        >>>         return self.crop_and_resize(x, boxes, box_index, self.crop_size)
+        >>>
+        >>> BATCH_SIZE = 1
+        >>> NUM_BOXES = 5
+        >>> IMAGE_HEIGHT = 256
+        >>> IMAGE_WIDTH = 256
+        >>> CHANNELS = 3
+        >>> image = np.random.normal(size=[BATCH_SIZE, IMAGE_HEIGHT, IMAGE_WIDTH, CHANNELS]).astype(np.float32)
+        >>> boxes = np.random.uniform(shape=[NUM_BOXES, 4]).astype(np.float32)
+        >>> box_index = np.random.uniform(shape=[NUM_BOXES], low=0, high=BATCH_SIZE).astype(np.int32)
+        >>> crop_size = np.array([24, 24]).astype(np.int32)
+        >>> crop_and_resize = CropAndResizeNet(crop_size=Tensor(crop_size))
+        >>> output = crop_and_resize(Tensor(image), Tensor(boxes), Tensor(box_index))
+        >>> print(output.asnumpy())
+    """
+
+    @prim_attr_register
+    def __init__(self, method="bilinear", extrapolation_value=0.0):
+        """init CropAndResize"""
+        self.init_prim_io_names(inputs=['x', 'boxes', 'box_index', 'crop_size'], outputs=['y'])
+        validator.check_value_type("method", method, [str], self.name)
+        validator.check_string("method", method, ["bilinear", "nearest"], self.name)
+        self.method = method
+        validator.check_value_type("extrapolation_value", extrapolation_value, [float], self.name)
+        self.extrapolation_value = extrapolation_value
+
+    def __infer__(self, x, boxes, box_index, crop_size):
+        # get shape
+        x_shape = list(x['shape'])
+        boxes_shape = list(boxes['shape'])
+        box_index_shape = list(box_index['shape'])
+        crop_size_shape = list(crop_size['shape'])
+        # get value
+        if crop_size['value'] is None:
+            raise ValueError(f"For {self.name}, crop_size must be const.")
+        crop_size_value = crop_size['value'].asnumpy()
+        # get dtype
+        x_dtype = x['dtype']
+        boxes_dtype = boxes['dtype']
+        box_index_dtype = box_index['dtype']
+        crop_size_dtype = crop_size['dtype']
+        # check dytpe
+        validator.check_tensor_type_same({"x": x_dtype},
+                                         [mstype.int8, mstype.int16, mstype.int32, mstype.int64, mstype.float16,
+                                          mstype.float32, mstype.float64, mstype.uint8, mstype.uint16], self.name)
+        validator.check_tensor_type_same({"boxes": boxes_dtype}, [mstype.float32], self.name)
+        validator.check_tensor_type_same({"box_index": box_index_dtype}, [mstype.int32], self.name)
+        validator.check_tensor_type_same({"crop_size": crop_size_dtype}, [mstype.int32], self.name)
+        # check input shape rank
+        validator.check("x rank", len(x_shape), "expected", 4, Rel.EQ, self.name)
+        validator.check("boxes rank", len(boxes_shape), "expected", 2, Rel.EQ, self.name)
+        validator.check("box_index rank", len(box_index_shape), "expected", 1, Rel.EQ, self.name)
+        validator.check("crop_size rank", len(crop_size_shape), "expected", 1, Rel.EQ, self.name)
+
+        validator.check("boxes dim_0", boxes_shape[0], "box_index dim_0", box_index_shape[0], Rel.EQ, self.name)
+        validator.check("boxes dim_1", boxes_shape[1], "expected", 4, Rel.EQ, self.name)
+
+        num_boxes = boxes_shape[0]
+        crop_height = crop_size_value[0]
+        crop_width = crop_size_value[1]
+        depth = x_shape[3]
+        return {'shape': (num_boxes, crop_height, crop_width, depth),
+                'dtype': mstype.float32,
+                'value': None}
diff --git a/tests/st/ops/ascend/test_aicpu_ops/test_crop_and_reszie.py b/tests/st/ops/ascend/test_aicpu_ops/test_crop_and_reszie.py
new file mode 100644
index 00000000000..f85751975d5
--- /dev/null
+++ b/tests/st/ops/ascend/test_aicpu_ops/test_crop_and_reszie.py
@@ -0,0 +1,49 @@
+# Copyright 2020 Huawei Technologies Co., Ltd
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ============================================================================
+import numpy as np
+
+import mindspore.context as context
+import mindspore.nn as nn
+from mindspore import Tensor
+from mindspore.common.api import ms_function
+from mindspore.ops import operations as P
+
+context.set_context(mode=context.GRAPH_MODE, device_target="Ascend")
+
+
+class Net(nn.Cell):
+    def __init__(self, crop_size):
+        super(Net, self).__init__()
+        self.crop_and_resize = P.CropAndResize()
+        self.crop_size = crop_size
+
+    @ms_function
+    def construct(self, x, boxes, box_index):
+        return self.crop_and_resize(x, boxes, box_index, self.crop_size)
+
+
+def test_net_float32():
+    batch_size = 1
+    num_boxes = 5
+    image_height = 256
+    image_width = 256
+    channels = 3
+    image = np.random.normal(size=[batch_size, image_height, image_width, channels]).astype(np.float32)
+    boxes = np.random.uniform(shape=[num_boxes, 4]).astype(np.float32)
+    box_index = np.random.uniform(shape=[num_boxes], low=0, high=batch_size).astype(np.int32)
+    crop_size = np.array([24, 24]).astype(np.int32)
+    net = Net(crop_size=Tensor(crop_size))
+    output = net(Tensor(image), Tensor(boxes), Tensor(box_index))
+    print(output.asnumpy())
diff --git a/tests/st/ops/ascend/test_aicpu_ops/test_ctc_loss.py b/tests/st/ops/ascend/test_aicpu_ops/test_ctc_loss.py
new file mode 100644
index 00000000000..67949bf767c
--- /dev/null
+++ b/tests/st/ops/ascend/test_aicpu_ops/test_ctc_loss.py
@@ -0,0 +1,43 @@
+# Copyright 2020 Huawei Technologies Co., Ltd
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ============================================================================
+import numpy as np
+
+import mindspore.context as context
+import mindspore.nn as nn
+from mindspore import Tensor
+from mindspore.common.api import ms_function
+from mindspore.ops import operations as P
+
+context.set_context(mode=context.GRAPH_MODE, device_target="Ascend")
+
+
+class Net(nn.Cell):
+    def __init__(self):
+        super(Net, self).__init__()
+        self.ctc_loss = P.CTCLoss()
+
+    @ms_function
+    def construct(self, inputs, labels_indices, labels_values, sequence_length):
+        return self.ctc_loss(inputs, labels_indices, labels_values, sequence_length)
+
+
+def test_net_float32():
+    x = np.rand.randn(2, 2, 3).astype(np.float32)
+    labels_indices = np.array([[0, 0], [1, 0]]).astype(np.int64)
+    labels_values = np.array([2, 2]).astype(np.int32)
+    sequence_length = np.array([2, 2]).astype(np.int32)
+    net = Net()
+    output = net(Tensor(x), Tensor(labels_indices), Tensor(labels_values), Tensor(sequence_length))
+    print(output.asnumpy())
diff --git a/tests/st/ops/ascend/test_aicpu_ops/test_reverse_sequence.py b/tests/st/ops/ascend/test_aicpu_ops/test_reverse_sequence.py
new file mode 100644
index 00000000000..5927b62560f
--- /dev/null
+++ b/tests/st/ops/ascend/test_aicpu_ops/test_reverse_sequence.py
@@ -0,0 +1,55 @@
+# Copyright 2020 Huawei Technologies Co., Ltd
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ============================================================================
+import numpy as np
+
+import mindspore.context as context
+import mindspore.nn as nn
+from mindspore import Tensor
+from mindspore.common.api import ms_function
+from mindspore.ops import operations as P
+
+context.set_context(mode=context.GRAPH_MODE, device_target="Ascend")
+
+
+class Net(nn.Cell):
+    def __init__(self, seq_dim, batch_dim):
+        super(Net, self).__init__()
+        self.reverse_sequence = P.ReverseSequence(seq_dim=seq_dim, batch_dim=batch_dim)
+
+    @ms_function
+    def construct(self, x, seq_lengths):
+        return self.reverse_sequence(x, seq_lengths)
+
+
+def test_net_int8():
+    x = np.array([[1, 2, 3], [4, 5, 6], [7, 8, 9]]).astype(np.int8)
+    seq_lengths = np.array([1, 2, 3]).astype(np.int32)
+    seq_dim = 0
+    batch_dim = 1
+    net = Net(seq_dim, batch_dim)
+    output = net(Tensor(x), Tensor(seq_lengths))
+    expected = np.array([1, 5, 9], [4, 2, 6], [7, 8, 3]).astype(np.int8)
+    assert np.array_equal(output.asnumpy(), expected)
+
+
+def test_net_int32():
+    x = np.array([[1, 2, 3], [4, 5, 6], [7, 8, 9]]).astype(np.int32)
+    seq_lengths = np.array([1, 2, 3]).astype(np.int64)
+    seq_dim = 1
+    batch_dim = 0
+    net = Net(seq_dim, batch_dim)
+    output = net(Tensor(x), Tensor(seq_lengths))
+    expected = np.array([1, 2, 3], [5, 4, 6], [9, 8, 7]).astype(np.int32)
+    assert np.array_equal(output.asnumpy(), expected)
diff --git a/tests/ut/python/ops/test_ops.py b/tests/ut/python/ops/test_ops.py
index 5927d97c50b..5b5fd57aa9f 100755
--- a/tests/ut/python/ops/test_ops.py
+++ b/tests/ut/python/ops/test_ops.py
@@ -1594,6 +1594,11 @@ test_case_array_ops = [
                         Tensor(np.arange(16).reshape(2, 4, 2).astype(np.float32))],
         'skip': ['backward'],
     }),
+    ('ReverseSequence', {
+        'block': P.ReverseSequence(1, 0),
+        'desc_inputs': [Tensor(np.array([[1, 2, 3], [4, 5, 6], [7, 8, 9]]).astype(np.float32)),
+                        Tensor(np.array([1, 2, 3]).astype(np.int32))],
+        'desc_bprop': [[3, 3]]}),
 ]
 
 test_case_other_ops = [